OS Giken's design allows for the fitment of more friction plates (up to 2x as many as competing versions)

A speed sensor (sold separately) can monitor shaft speed

4L BMW M20 Stroker Kit is specifically designed for increasing displacement in BMW M20 engines

which features large inlet/outlets in order to match the inner dimension of the CCV hose

5150 AutoSport High Performance Rod Bearing Kit, BMW S50B32 Sirius OS Giken's design allows forOur 5150 AutoSport Rod Bearing Kit is designed to be a significant upgrade from OEM bearings for your BMW S50B30 engine. This all inclusive package includes Calico coated rod bearings, ARP connecting rod bolts, and ARP assembly lubricanteverything you need for a reliable rod bearing replacement. Kit Contents: Calico Coated Rod Bearings ARP Connecting Rod Bolts ARP Assembly Lubricant Installation Instructions The Calico coated bearings provide